TEM studies of domain formation mechanisms in MnV2O4

Y. Murakami, Y. Nii, T. Arima, D. Shindo, K. Yanagisawa, A. Tonomura

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Crystallographic and magnetic domains produced in a spinel-type compound MnV2O4, which exhibits a type of giant magnetostriction attributed to twin boundary motion, have been studied using transmission electron microscopy techniques. Although MnV2O4 undergoes a displacive cubic-to-tetragonal transformation upon cooling, it does not show a well-defined habit plane (i.e. the plane with a specific index that is favored for minimizing the transformation) due to the small elongation/contraction in the lattice. Electron holography demonstrates a considerable reduction in the magnetic signal by cooling the tetragonal phase to 40 K. Despite the elimination of micrometer-scale ferrimagnetic domains, weak magnetic contrast still remained, indicating small residual magnetic domains in particular portions, such as in the crosshatch of twinning pairs.

Original languageEnglish
Pages (from-to)S731-S735
JournalJournal of Alloys and Compounds
Volume577
Issue numberSUPPL. 1
DOIs
Publication statusPublished - Nov 15 2013

Fingerprint

Magnetic domains
Transmission electron microscopy
Electron holography
Cooling
Magnetostriction
Twinning
Elongation

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Murakami, Y., Nii, Y., Arima, T., Shindo, D., Yanagisawa, K., & Tonomura, A. (2013). TEM studies of domain formation mechanisms in MnV2O4. Journal of Alloys and Compounds, 577(SUPPL. 1), S731-S735. https://doi.org/10.1016/j.jallcom.2012.02.031

TEM studies of domain formation mechanisms in MnV2O4. / Murakami, Y.; Nii, Y.; Arima, T.; Shindo, D.; Yanagisawa, K.; Tonomura, A.

In: Journal of Alloys and Compounds, Vol. 577, No. SUPPL. 1, 15.11.2013, p. S731-S735.

Research output: Contribution to journalArticle

Murakami, Y, Nii, Y, Arima, T, Shindo, D, Yanagisawa, K & Tonomura, A 2013, 'TEM studies of domain formation mechanisms in MnV2O4', Journal of Alloys and Compounds, vol. 577, no. SUPPL. 1, pp. S731-S735. https://doi.org/10.1016/j.jallcom.2012.02.031
Murakami Y, Nii Y, Arima T, Shindo D, Yanagisawa K, Tonomura A. TEM studies of domain formation mechanisms in MnV2O4. Journal of Alloys and Compounds. 2013 Nov 15;577(SUPPL. 1):S731-S735. https://doi.org/10.1016/j.jallcom.2012.02.031
Murakami, Y. ; Nii, Y. ; Arima, T. ; Shindo, D. ; Yanagisawa, K. ; Tonomura, A. / TEM studies of domain formation mechanisms in MnV2O4. In: Journal of Alloys and Compounds. 2013 ; Vol. 577, No. SUPPL. 1. pp. S731-S735.
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